Since the update, a certain style of formatting code is highlighted with
How do I turn off this behavior?
(defun lisp--match-hidden-arg (limit) nil)
(setq lisp-el-font-lock-keywords-2 (cl-delete 'lisp--match-hidden-arg lisp-el-font-lock-keywords-2 :key #'car))
The coding style detected by
lisp--match-hidden-arg is not very readable.
"... a computer language is not just a way of getting a computer to perform operations, but rather ... it is a novel formal medium for expressing ideas about methodology"
Abelson/Sussman "Structure and Interpretation of Computer Programs".
You write code so that people (and you yourself a year from today!) will read and understand it. Coding conventions serve a purpose. Please think before rejecting them.